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LB1836MEVB:  Bidirectional Motor Driver IC Evaluation Board

The LB1836M is 2-channel low-voltage, low saturation voltage type bidirectional motor driver IC that is optimal for use as a 2-phase stepping motor driver in printers, floppy disk drives, and cameras and other portable equipment. The output circuits are of the bipolar type, with pnp transistors in the upper side and npn transistors in the lower side, and they achieve low saturation output and low power characteristics despite being provided in a miniature package.

The LB1836M can directly control a motor from signals from a microcontroller. The LB1836M is ideally suited for the stepping motor, two phase excitation, and 1-2 phase excitation drive.

The LB1836M includes a built-in thermal shutdown circuit so that IC scorching or burning is prevented in advance, even if the IC outputs are shorted. Additionally, the MFP-14S miniature package used supports reduced-space mounting.

Features and Applications

Features

  • Low voltage operation (2.5V min)
  • Low saturation voltage (upper transistor + lower transistor residual voltage ; 0.40V typ at 400mA)
  • Parallel connection (Upper transistor + lower transistor residual voltage ; 0.5V typ at 800mA)
  • Separate logic power supply and motor power supply
  • Brake function
  • Spark killer diodes built in
  • Thermal shutdown circuit built in
  • Compact package (14-pin MFP)
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
LB1836MEVB Active
Bidirectional Motor Driver IC Evaluation Board LB1836M-TLM-E
FutureElectronics (2020-08-19) : 10
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: BOM LB1836MEVB Bill of Materials LB1836MEVB_BOM.PDF - 15 KB  0 
Eval Board: Gerber LB1836MEVB Gerber Layout Files (Zip Format) LB1836MEVB_GERBER.ZIP - 102.0 KB  0 
Eval Board: Schematic LB1836MEVB Schematic LB1836MEVB_SCHEMATIC.PDF - 132 KB  0 
Eval Board: Test Procedure LB1836MEVB Test Procedure LB1836MEVB_TEST_PROCEDURE.PDF - 228 KB  1 
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